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San Mateo Police Department Adopts Wi-Fi Mesh Network

Officers gain access to databases and information from the field.

SAN MATEO, Calif. -- While some police departments now use 802.11 hot-spot technology, it may require officers to drive to specific sites for wireless information access and may be too costly and impractical for implementing large coverage areas. The San Mateo, Calif., Police Department (SMPD) has implemented a metro-scale, Wi-Fi mesh network for law enforcement. The SMPD has created a cellular Wi-Fi hot zone in downtown San Mateo and is making critical applications available to police officers in the field. San Mateo is located between San Francisco and San Jose with a population of more than 90,000 residents.

The SMPD constructed their hot zone using 17 Wi-Fi cells from Tropos Networks in a mesh configuration in downtown San Mateo. With the Wi-Fi cells, the SMPD was able to create a reliable, large-scale Wi-Fi network that would have otherwise been economically and logistically unfeasible. The department also has plans to further expand the hot zone with the ultimate goal of covering the city's critical crime areas so that police officers have access to information anytime, anywhere within their beats.

Once complete, the SMPD also plans to allow fire, public works and other city departments to have access with VPN sessions to the large Wi-Fi network. In total, the department will deploy nearly 40 Wi-Fi cells.

"Our Wi-Fi network now allows officers to take their office mobile," said SMPD Chief Susan E. Manheimer. "It extends to patrol cars access to multiple, secure police databases that were previously restricted to use in the police station. It also allows officers to send reports from their cars to the station, eliminating the need to leave their assigned beats. Because our officers now have broadband access to critical information, they can more quickly solve crimes in our community."

Using laptops in their police cars, including the Incident Commander's vehicle and the Mobile Command Center, SMPD officers now have wireless broadband access to LAWNET, a countywide intranet for law enforcement that connects officers to the Amber Alert System, the Sex Offender Database and other databases.

From anywhere in the hot zone, officers can now download DMV records, including high-resolution photos, conduct in-field photo lineups, and perform other tasks that previously required them to return to headquarters. In the future, officers will have access to live video feeds of security cameras and access to the city's geographic information system.
Miriam Jones is a former chief copy editor of Government Technology, Governing, Public CIO and Emergency Management magazines.